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Finding the Fourth Proportional to 29,857.60, 44,784.60 and 13,212.76

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Solution

The fourth proportional to 29,857.60, 44,784.60 and 13,212.76 is: 19,818.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,857.60 : 44,784.60 = 13,212.76 : x
  2. Step 2: Convert to fraction form
    29,857.60/44,784.60 = 13,212.76/x
  3. Step 3: Cross multiply
    29,857.60x = 44,784.60 × 13,212.76
  4. Step 4: Simplify right side
    29,857.60x = 591,728,171.50
  5. Step 5: Solve for x
    x = 591,728,171.50/29,857.60
  6. Step 6: Final answer
    x = 19,818.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.